P0335 Hyundai Sonata
Crankshaft Position Sensor A Circuit Malfunction · Powertrain Code · Critical · Repair: Moderate
What is P0335?
The crankshaft position sensor circuit has a malfunction. Engine may crank but not start, or stall intermittently.
When the Hyundai Sonata triggers code P0335 (crankshaft position sensor a circuit malfunction), it typically points to an issue in the powertrain system. This is a critical severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Hyundai Sonata.
This repair is rated moderate, meaning some experience and specialty tools required.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Hyundai Sonata.
Common Causes on Hyundai Sonata
- Failed crankshaft position sensor (CKP)
- CKP sensor wiring harness damaged or connector corroded
- Damaged reluctor ring on the crankshaft
- Excessive crankshaft end play from bearing wear
Symptoms
- Check Engine Light on
- Engine cranks but will not start
- Intermittent stalling
- Engine cuts out randomly while driving
- No tachometer reading
Notes for Hyundai Sonata
CKP sensor failures often cause intermittent no-start; carry a spare if the issue is intermittent.